/*  
  -- The Lime II Project -- 

  A tuplespaces-based middleware for coordinating agents and mobile hosts.
  Copyright (C) 2005.
  Gian Pietro Picco, Amy L. Murphy, Lorenzo Bellini.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received this copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
*/

package lime2;
import java.io.*;

/**
 * A facility for de/serialization of objects.
 * 
 * @author Gian Pietro Picco
 * @author Amy Murphy
 * @author Lorenzo Bellini
 */

public class Serializer 
{
 /**
  * Serializes an object. Throws LimeRuntimeException when an object cannot be serialized.
  * 
  * @param o object to serialize
  * @return bytes
  */	
 public static byte[] serialize(Object o) 
 {
  byte[] result = null;
  try 
  {
   ByteArrayOutputStream bs = new ByteArrayOutputStream();
   ObjectOutputStream os = new ObjectOutputStream(bs);
   os.writeObject(o); 
   os.flush(); 
   os.close(); 
   bs.close();
   result = bs.toByteArray();
  } 
  catch(IOException ioe) { throw new LimeRuntimeException("can't serialize object", ioe); }
  return result;
 }
	 
 /**
  * Deserializes an object. Throws LimeRuntimeException when an object cannot be deserialized.
  * 
  * @param bytes
  * @return deserialized object
  */
 public static Object deserialize(byte[] bytes) 
 {
  Object result = null;
  try 
  {
   ObjectInputStream os = new ObjectInputStream(new ByteArrayInputStream(bytes));
   result = os.readObject(); 
   os.close();
  } 
  catch(IOException ioe) { throw new LimeRuntimeException("can't deserialize object", ioe); } 
  catch(ClassNotFoundException cnfe) { throw new LimeRuntimeException("can't found class of serialized object", cnfe); }
  return result;
 }
 
}
